Patents by Inventor James W. Blue

James W. Blue has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Targets for producing high purity .sup.123 I
    Patent number: 4088532
    Abstract: Tellurium powder in improved targets is bombarded with a cyclotron beam to produce .sup.123 Xe. Flowing gas streams carry the .sup.123 Xe through one cold trap which removes contaminants to another cold trap which removes .sup.123 Xe that subsequently decays to .sup.123 I.During this bombardment energy is deposited in the target material causing its temperature to rise. Some of the tellurium vaporizes and subsequently condenses on surfaces that are cooler than the vaporization temperature. Provision is made for the repeated bombardment of this condensed tellurium.
    Type: Grant
    Filed: September 4, 1973
    Date of Patent: May 9, 1978
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: James W. Blue
  • Production of .sup.123 I
    Patent number: 3971697
    Abstract: Bombarding a cesium heat pipe with high energy particles causes a spallation reaction which produces vapors of .sup.123 Xe and contaminants. The contaminants are removed in a dry ice cold trap while the .sup.123 Xe condenses in a liquid nitrogen trap where it decays to .sup.123.sub.I.
    Type: Grant
    Filed: July 12, 1973
    Date of Patent: July 27, 1976
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: James W. Blue
  • Method of producing .sup.123 I
    Patent number: 3966547
    Abstract: Bombarding a cesium heat pipe with high energy particles causes a spallation reaction which produces vapors of .sup.123 Xe and contaminants. The contaminants are removed in a dry ice cold trap while the .sup.123 Xe condenses in a liquid nitrogen trap where it decays to .sup.123 I.
    Type: Grant
    Filed: March 13, 1973
    Date of Patent: June 29, 1976
    Assignee: The United States of America as represented by the United States National Aeronautics and Space Administration
    Inventor: James W. Blue